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Q. What is compound?
A compound is a substance which consists of two or more elements chemically combined. The elements in a compound aren't simply mingled together as they are in a mixture. In its place they are combined in a way such that the compound has properties that are different from those of the elements of which it is composed. Every compound is represented by a formula a combination of the symbols of the elements that make up the compounds. You may already recognize some chemical formulas such as H2O for water, NaCl for table salt and NH3 for ammonia.
The cell diagram of a mercury cell can be written Zn(s) | ZnO (s) NaOH (aq) HgO (s) HgO (I) (a) Write the electrode reactions and cell reaction with electron number z = 2.
Haber-Bosch Process Ammonia is one of the most significant intermediates. It is used, for example, for the production of fertilizers. Usually, ammonia is formed from hydrogen a
Classification of proteins - Fibrous proteins These are composed of polypeptide chains which run parallel to the axis and are held together by a strong hydrogen and disulphide
Q. Explain Specific Heat and caluclate amount of heat transferred? Ans. The amount of heat transferred to a substance depends on three things: a) amount of the substance
properties of halogens
how can i make a project work on it?
A medicine dropper is an instrument used to calculate small amount of liquids, usually in milligrams.
The diffusion current for a standard 1 x 10-4 M solution of hydroquinone is found to be 17.5 µA. An unknown solution of hydroquinone, when diluted tenfold and analysed under simila
general physical properties of p block elements chemmical
In covalency : (1) Electrons are transferred (2) Electrons are equally shared (3) The electron of one atom are shared between two atoms (4) None of the above Ans: E
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